The event took place Saturday in the main square of the city, where a person has fired people from a moving vehicle, international media report, referring to the Polish authorities.
According to Reuters agency, there are two police officials among the injured, one of whom is in serious condition.
Suspect, Polish citizen, has been shot by police and then arrested. According to police spokeswoman Katarzyna Cislo, he was wearing military-style clothes and had used military weapons.
Many weapons and ammunition were also found in his vehicle, Cislo declared.
Police have announced that the suspect is the only person known as the author of this attack. So far the cause of the shooting has not been disclosed.
Polish Prime Minister Donald Tusk has said he is constantly being informed of the situation, while authorities are investigating all circumstances in the event.
Source Layer: RTKLive